Fastener



' Nov. 1, 1927.

F. s. CARR FASTENER Filed June 14. 1924 Patented Nov. 1, 1927.

UNITED STATES PATENT OFFICE. I

FRED S. CARR, OF NE\VTON, MASSACHUSETTS, ASSIGNOR TO CARR FASTENER COM- PANY, OF CAMBRIDGE, MASSACHUSETTS, A CORPORATION- OF MAINE.

FASTENER.

Application filed June 14, 1924. Serial No. 719,921.

This invention aims to provide an improved separable fastener. p

In the drawings, which illustrate a preferred embodiment of my invention Figure 1 is a front elevation of a preferred form of fastener;

Fig.- 2 is a rear elevation of the stud v Fig. 3 is a section on the line 3-3 of Fig. 1, being partly in elevation; I

Fig. 4 is a section similar to Fig. 3, showing the locking means displaced to permit separation of the fastener; and

Fig. 5 is a section on the line 5-5 of Fig. 3.

Referring to the drawings, I have shown a socket attached to the body of an auto-- mobile by means of a screw 9 secured to the body 11 of a socket substantially as shown and described in the co-pending application of Moses F. Carr, Serial No. 719,930, filed herewith.

The socket herein shown also includes a stud-receiving aperture 13 normally closed by a plain sealing disc 15 urged into aperture-closing position by a spring 17.

The preferred form of stud presents a cont'ractible and expansible socket-engaging part 18 pressed out from a single sheet of metal which is so formed as to present a base '18. This socket-engaging part18 may be securedto the stud-carrying fabric 19 in any suitable manner, but I prefer to provide a plurality of attaching prongs 21 presented by an attaching plate 23, and these prongs may be forced through the stud-carrying fabric 19 and upset against suitable clenching means located at the opposite side of the fabric.

The preferred form of clenching means comprises an anvil portion 25 formed from the base 18 and a front plate 29 having a flanged portion or clench plate 31 rolled over the outer periphery of the anvil portion 25 to secure the front plate thereto.. Thus the prongs are forced against the anvil portion 25 and are curved outwardly and downwardly against the flange portion 31, thereby gripping the fabric 19 between the base 18 and the back plate 23 as illustrated in Figs. 3 and at.

The base 18 cf the socket-engaging part 18 is thus secured to the stud-carrying fabric 19 at the side thereof opposite the side adjacent the socket and the socket engaging part 18 is presented through an aperture in the fabric and an'ap'erture in the back plate 23 for. engagement with the socket. The back plate 23 closely surrounds the socket-engaging part 18, as illustrated, and

1 thus supports it and prevents it from being expanded to such an extent that it cannot en terthe socket.

While the socket-engaging part 18 of the stud may be held in engagement with the socket by its own resiliency, I prefer to provide suitable locking means 35 comprising a locking head 37 for engagement with the re- ,versely bent portions 38 of-the head of the stud and a press-button part 39 located at the opposite end of'the locking means'and pre sented through an aperture in the front plate 29. The aperture in the front plate is surrounded by an annular wall 41, which pro- Vides a guiding surface for the press-button and also limits the forward movement of the press-button part 39, as best illustrated in Fig. 3.

The locking means is normally held in locking position relative to saidsocket-engaging part, by a spring 45 interposed be tween the reversely bent portions 38 and the press-button part 39.' The front plate 29 of the stud, as illustrated, holds all of the stud parts assembled as a-un'it so that the stud may be very easily secured to the curtain by the use of the prong-presenting attaching plate 23.

Engagement of the stud withthe socket *is effected by pressing upon thepress-button and urging the head of the stud toward the stud-receiving aperture 13 located in the socket. The head of the stud engages the front face of the socket against the periphery of the stud-receiving aperture and further pressure forces the locking head 39 of the locking means out of engagement with the reversely bent portions 38, thus allowing the head of the stud to contractand enter the stud-receiving aperture. Pressure is then released from the press-button and the spring 45, aided by the spring 17 in the socket, forces the locking head 37 into locking position, thereby to prevent separation of the stud from the socket by accidental strain exerted upon the curtain in any direction.

Separation of the fastener is effected by grasping the lower edge of the curtain and exerting a slight pull thereon, at the same time pressing the press-button 39 to disengage the locking head 37 from the reversely ferred form of one embodiment of my invention, it will be understood that changes involving omission, alteration, substitution and reversal of parts, and even changes in the mode of operation, may be made without departing from the scope of my invention which is best defined in the following claims.

Claims:

1. A separable fastener installation comprising, in combination, a fastener part, a fastener-carrying medium, attaching means forming part of the fastener assembly and presenting a prong-turning portion and a part presenting a prong-clenching surface located at one side of the carrying medium for said fastener part, an attaching plate located at the opposite side of the carrying; medium and presenting a plurality of prongs passing through the support and turned and clenched by said prong-turning portion and prong-clenching surface to hold the parts of the installation in assembly with the support and an axially shift-able button member assembled with said parts, said button member being limited in its movement in one direction by the part presenting the prong-clenching surface.

s 2. A stud for a separable fastener including a socket-engaging member having an anvil portion integral therewith, a clench plate secured to said anvil portion, an attaching plate presented at the opposite side of a stud-carrying fabric from said anvil portion and clench plate, and a plumlity of prongs presented by said attaching plate, said prongs forced-through the stud-carrying fabric and upset against said clench plate by said anvil portion to secure said socket-engaging member to said stud-carrying fabric.

3. A stud for a separable fastener including as a unit a resilient socket-engaging part contractible and expansible at all sides thereof, a shiftable part forming part of the stud assembly for preventing contraction of the socket-engaging part, an anvil part and a clench plate, said clench plate and said anvil part located at one side of a carrying medium and secured thereagainst by a plurality of attaching prongs bent outwardly and downwardly by said anvil part, said prongs being presented'by an attaching plate located at the opposite side of the carrying medium.

4. A stud for a separable fastener including a contractible and expansible socket-engaging member pressed from a base plate, an anViL portion presented at the outer periphery of said base plate, a combined front plate and clench plate secured to said anvil portion and an attaching'platelocated at the opposite side of a stud-carrying medium, said attaching plate presenting a plurality of prongs at the outer periphery thereof for engagement with said anvil part and clench plate to secure said stud to the stud-carrying fabric.

5. A stud for a separable fastener includ ing a contractible and expansible socket-engaging member, an attaching plate presenting a plurality of prongs at its outer periphcry for securing said socket-engaging member and attaching plate to opposite sides of a stud-carrying fabric, said contractible and expansible portion of said stud extending through said attachingplate and said attaching plate closely embracing and backsupporting said socket-engaging member to prevent abnormal expansion thereof.

In testimony whereof, I have'signed my name to this specification.

FRED S. CARE. 

